# klang² vs Sato Code

The clearest difference is in-app purchases: Sato Code at none against klang²'s 10. Sato Code also leads on update cadence (every 3 weeks vs every 2 months) and iOS requirement (13.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. klang² sells 10 one-off in-app purchases. Sato Code asks for nothing beyond the download.

klang² ships an update every 2 months, Sato Code every 3 weeks. The most recent releases landed on September 14, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | klang² | Sato Code |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sato-code/id1521846978/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 89 MB | 242 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Oberlin & Rennertz GmbH](https://appshunter.io/developer/1474108830) | [ocha](https://appshunter.io/developer/1470786952) |

## What reviewers say

### klang²

[App page](https://appshunter.io/ios/app/klang/id1491987376)

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Klang2 Pro Option 0 | Free | one-time |
| Klang2 Pro Option 1 | $0.99 | one-time |
| Bundesländer und Hauptstädte | $0.99 | one-time |
| Klang2 Pro Option 2 | $1.99 | one-time |
| Klang2 Pro Option 3 | $3.99 | one-time |
| Volkslieder Premium | $3.99 | one-time |
| Tierisch Menschlich | $3.99 | one-time |
| Klang2 Pro Option 4 | $7.99 | one-time |
| Klang2 Pro Option 5 | $11.99 | one-time |
| Klang2 Pro Option 6 | $16.99 | one-time |


### Sato Code

[App page](https://appshunter.io/ios/app/sato-code/id1521846978)

Embark on a city-wide adventure game where you solve puzzles and follow clues to reach a final challenge. Gather a team and use your phone to navigate and interact with installations.

**Highlights:** City-wide adventure game, Sequential puzzle solving, Clue-based progression, Team play (2-4 players), Interactive installations, 24/7 access to trails

**In-app purchases:** none


## Frequently asked questions

### Is klang² free?

klang² is free to download, with in-app purchases available.

### Is Sato Code free?

Sato Code is free to download, with no in-app purchases.

### Do klang² or Sato Code have ads?

Neither klang² nor Sato Code shows ads.

### Which is updated more often, klang² or Sato Code?

klang² ships an update every 2 months, and Sato Code every 3 weeks. Most recently, klang² was updated on September 14, 2026 and Sato Code on September 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*